Synonyms|128Antonyms|3|Broader|4Narrower|0Related|53

68 entries under clandestine topic. ×

1
sneak(close, inside, underground, undisclosed)
1
sneaky(adjective, underground, undisclosed)
1
sub-rosa(close, sensitive, underground, undisclosed)
1
top secret(expression, close, sensitive, inside)
1
unacknowledged(close, sensitive, inside, underground)
1
under-the-table(sensitive, underground, undisclosed, sub-rosa)
1
under false pretense(expression, idiom, close, sensitive)
1
unenlightened(obscure, deep, unknown, underground)
1
unfrequented(obscure, deep, unknown, underground)
1
unpublished(obscure, deep, unknown, underground)
1
unseen(obscure, unknown, underground, undisclosed)
0
abstruse(obscure, unknown, underground, undisclosed)
0
ambiguous(obscure, deep, unknown, underground)
0
closet(obscure, intimate, private, unknown)
0
deep(obscure, unknown, underground, undisclosed)
0
hidden(underground, undisclosed)
0
mystic(obscure, unknown, underground, undisclosed)
0
mystical(obscure, unknown, underground, undisclosed)
0
occult(obscure, unknown, underground, undisclosed)
0
strange(obscure, deep, unknown, underground)
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ChicagoSmart Define. 2013. "backdoor thesaurus" https://smartdefine.org/backdoor/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2013, backdoor thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/backdoor/thesaurus/synonyms>.
MLASmart Define. "backdoor thesaurus" 19 May 2013. Web. 27 September 2026. <https://smartdefine.org/backdoor/thesaurus/synonyms>